Germany, France and Britain on Wednesday called on Israel to stop blocking humanitarian aid into Gaza, warning of "an acute risk of starvation, epidemic disease and death".

"This must end," their foreign ministers said in a joint statement. "We urge Israel to immediately re-start a rapid and unimpeded flow of humanitarian aid to Gaza in order to meet the needs of all civilians."

A Hamas delegation left for Cairo to discuss "new ideas" aimed at securing a Gaza ceasefire, an official from the group said, as Israeli air strikes killed 26 people across the territory Tuesday.

The renewed effort follows Hamas's rejection last week of Israel's latest proposal to secure the release of hostages still held in Gaza.

Federal immigration authorities denied Mahmoud Khalil's request for a temporary release from detention to attend the birth of his first child, who was born Monday in New York, according to emails shared with The Associated Press.

Khalil, a Columbia University activist who has been held in a detention center in Jena, Louisiana for six weeks, requested a two-week furlough on Sunday morning, noting that his wife, Dr. Noor Abdalla, had gone into labor eight days earlier than expected.

Palestinian group Islamic Jihad's armed wing said Tuesday that Syria's new authorities had detained two of the group's officials and called for their release.

A statement from the Al-Quds Brigades said Islamic Jihad's Syria official Khaled Khaled and organizing committee member Yasser al-Zafri had been detained in Syria for five days "without explanation".

In the last 18 months of his life, Pope Francis had a frequent evening ritual: He would call the lone Catholic church in the Gaza Strip to see how people huddled inside were coping with a devastating war.

That small act of compassion made a big impression on Gaza's tiny Christian community and was why he was remembered at his death Monday as a beloved father figure in the beleaguered territory.

The head of Israel's internal security service on Monday accused Prime Minister Benjamin Netanyahu of trying to exploit the power of the agency for political and personal gain through a litany of improper demands. His comments deepened a showdown between the two men that has divided the nation.

In a submission to the Supreme Court, Shin Bet chief Ronen Bar wrote that he refused a request from Netanyahu to identify Israeli anti-government protesters and surveil their financial backers.

Gaza's civil defence agency said that a spate of Israeli air strikes since dawn on Tuesday killed at least 25 people across the Hamas-run territory.

Israel resumed an intense air and ground offensive on Gaza on March 18, ending a two-month ceasefire that had largely halted the fighting in the besieged Palestinian territory.

An Israeli investigation into the killings of 15 Palestinian medics last month in Gaza by Israeli forces said Sunday it found a chain of "professional failures" and a deputy commander has been fired.

The shootings outraged many in the international community, with some calling the killings a war crime. Medical workers have special protection under international humanitarian law. The International Red Cross/Red Crescent called it the deadliest attack on its personnel in eight years.

Suleiman Khalil was harvesting olives in a Syrian orchard with two friends four months ago, unaware the soil beneath them still hid deadly remnants of war.

The trio suddenly noticed a visible mine lying on the ground. Panicked, Khalil and his friends tried to leave, but he stepped on a land mine and it exploded. His friends, terrified, ran to find an ambulance, but Khalil, 21, thought they had abandoned him.

U.S. airstrikes targeting Yemen's capital killed 12 people and wounded 30 others, the Houthi rebels said early Monday.

The deaths mark the latest in America's intensified campaign of strikes targeting the rebels. The U.S. military's Central Command declined to answer questions about the strike or discuss civilian casualties from its campaign.